Home / 130,379.20-195,590.80-40,401.20

Finding the Fourth Proportional to 130,379.20, 195,590.80 and 40,401.20

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Solution

The fourth proportional to 130,379.20, 195,590.80 and 40,401.20 is: 60,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,379.20 : 195,590.80 = 40,401.20 : x
  2. Step 2: Convert to fraction form
    130,379.20/195,590.80 = 40,401.20/x
  3. Step 3: Cross multiply
    130,379.20x = 195,590.80 × 40,401.20
  4. Step 4: Simplify right side
    130,379.20x = 7,902,103,028.96
  5. Step 5: Solve for x
    x = 7,902,103,028.96/130,379.20
  6. Step 6: Final answer
    x = 60,608.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.